This is a PCB only. I'm just selling off the extra PCBs I get when I order my own. It's not a commercial product nor a business. It's not certified, qualified or tested. You should know what you are doing to use this PCB. For more information please follow the hackaday links.

This is a simple adapter that allows an 8x8 matrix keyboard to be scanned by an RC2014 system. The connectors are spaced for the ZX81 5 x 8 keyboard but the other 3 lines are available and as the ZX81 headers are 2.54mm it's also possible to use it as a fairly generic interface.

ZX81 membranes keyboard replacements are available from RWAP software. An ALPS tactile switch version is available from ginger-electronics (ZX8-KDLX). It's possible to print your own top layer with a standard ASCII type layout or to use the ZX Spectrum style ZXMAX48 overlay from Tynesoft on tindie.

Example support can be found the Fuzix OS tree.

Note: This interface uses the full 16bit I/O space so will not work with most non Z80 processor cards